B-heptomino
A somewhat vigorous, commonly seen bit of
fluff, which lends to Life's growth
tendencies. This piece is used in PUFTRAIN,
RAKE, RAKE2, RAKE3, BHEPTPUF, GUN46, TRACK,
GUNSTAR, GUNSTAR2, GUNSTAR3, BI-GUN, and the
p46, p54, and p100 shuttles in OSCSPN2 and
OSCSPN3, and in many other patterns.